Grooving-plane.



8. DE AYALA.

GROOVING PLANE.

APPLICATION FILED SEPT-17.1912.

Patented Nov. 2, 1915.

3 SHEETS-SHEET I.

JNVENTOR: Sfipm 4Q 3 A TTORNEYS.

COLUMBIA PLANOGIAPH C0,,WASHINOTON. n. c.

8. DE AYALA.

GROOVING PLANE.

APPL-ICATION FILED SEPT-17. 1912.

- Patented Nov. 2, 1915.

3 SHEETS-SHEET 2.

INVENTOR. (i datum A TTORNEYS',

WITNESSES: 6 fl 77M Wm 8. DE AYALA.

GROOVING PLANE.

APPLICATION men SEPT. 17. 1912.

1, 1 58,648. Patented Nov. 2, 1915.

3 SHEETS-SHEET 3- 41 YA v 56 F 8 22 I WITNESSES: SD INVEAZ;R.

2 W14 de 4Z9, 7%. BY 7 ATTORNEYS.

STATES PATENT FTC.

STEPHEN DE AYALA, 0F BROOKLYN, NEW YORK, ASSIGNOR TO SARGENT & COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

GROOVING-PLANE.

Specification of Letters Patent.

Patented Nov. 2, 1915.

New York, have invented certain new and.

useful Improvements in Gr'ooving-Planes, of which the following is a full, clear, and exact description.

This invention relates to grooving planes and more particularly to planes adapted to cut rat-hershallow V-shaped grooves. V

The improved plane is especially adapted for cutting seriesof intersecting grooves on surfaces of rather extended area in order to give the ornamental appearance of'paneling composed of a plurality of separate blocks.

The object of the invention is to provide an improved arrangement of the cutting mechanism; to furnish an improved means of adjustment between the cutting mechanism and the sole of the stock; and to provide improved means for supporting and adjusting the gage or fence by which the plane is guided in a predetermined path, said gage or fence being adapted for guidance in a completed groove during the operation of cutting the next groove.

To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings, Figure l is a side elevation of a plane embodying my invention, Fig. 2 is a similar elevation from a the opposite side, Fig. 3 is a front end elevation, Fig. 4 is a rear endelevation with the sole plate and gage in different adjustments from those in F ig. 3, Fig.5 is a bottom plan view of the plane, Fig. 6 is a detail section on line 6 6 of Fig. 4;, Fig. 7 is a vertical longitudinal section of the plane, Fig. 7 is a detail section on line 7 of Fig. 7 Fig. 8 is a horizontal section on line SS of Fig. 1, Fig. 9 is atop plan view of the sole plate, detached, Figs. 10 and llare details of the gage locking mechanism, the

.first showing one of the gage pins released and the second showing it locked in position, Figs. 12 and 13 are sections on lines 12-12 and 1313 respectively of Figs. 10 and 11, Fig. 14 is a detail of the locking plate of the gage mechanism, F g. 15 is a detail of one of the gage supporting pins, and Fig. 16 is a detail of one of the bits or cutters.

Referring to the drawings the stock, indicated at 20, may be of wood, having a metal insert or frame 21 at the base thereof to support the cutters 22. Below the base portion of the frame or insert 21 is a sole plate or bed piece 23, adjustable vertically by means to be hereinafter described, and having a slot or throat 24 through which the cutting edges of the bits 22 project downwardly, as shown in Fig. 7. The bits or cutters 22 are arranged in V-fashion, each being clamped in an inclined position relative to the longitudinal plane of the device, against bearing portions25 at the respective sides of the frame or insert piece 21, so that the cutter blades converge downwardly. These blades are adjustably secured in place by means of screws 26 engaging slots 27 in the respective blades or bits, as shown in Fig. 7 At their lower portions the bits 22 are provided with beveled cutting edges 28 inclined downwardly from the front of the plane toward the rear thereof, as shown in Fig. 7, and the lowermost corners of points of the two bits which lie rearwardly with respect to the stock are arranged in contact with each other as shown at 29 in Fig. 8. From their rear points of contact the beveled cutting edges 28 of the bits diverge forwardly and upwardly as shown in Figs. 7 and 8. This arrangement of the cutters has been found to give excellent results in actual practice, as the sharp edges of the bits produce a shearing cut and their contacting points at the rear cut the wood sharply and uniformly to produce a V-shaped groove.

The depth of the out is regulated by adjusting the sole plate 23 is a vertical direction so that the contacting points of the bit edges extend below the lower surface of the sole plate to a greater or less extent. The sole plate is preferably adjusted in this manner by means of separate adjusting de or lowered respectively. The rear adjusting device for the sole plate comprises a tubular shank 35 having a thumb p1ece'36 and provided with interior threads which engage a threaded shank 37 secured to or integral 'witl1 the rear end of the sole plate and rising therefrom. The tubular thumb screw 35, 36 1S prevented from longitudinal dis placement by means of a plate 37 set in a kerf of the stock and engaging a notch in the tubular portion 35 as shown in Fig. 7,

said tubular portion being freely rotatable at both ends in suitable sockets 38, 39 provided in the body portion of the stock. By suitable manipulation of the front and rear adjusting devices for the sole plate 23, said sole plate maybe adjusted vertically in; parallelism with-the bottom part of the stock proper.

40 indicates a gage or fence adapted to project downward into a groove cut by the plane in order to guide the latter in cutting the next groove. This gage or fence is arranged parallel to the stock at one side thereof as shown in Figs. 3 and 4 and is constituted by a flat plate adjustable laterally toward and away from th side of the plane'proper. The adjusting mechanism for the gage device comprises supporting pins 41 extending through tubular sockets "42 formed in the insert or flame 21, as

shown in Figs. 7 and 8. The pins 41 are each provided at one end with a manipulating head 48 and at the opposite end each of said pins is provided with an interiorly threaded socket for the reception of a screw 44 passing through the gage plate and having a head 45 abutting the same. By screwing in or out the screws 44, the position of the gage plate may be varied relatively to the ends of its supporting pins 41, as shown by a comparison of Figs. 3 and 4, and a a further adjustment is provided, in order to bring the adjustment to a nicety, by having the pins 41 adjustable longitudinally in "their sockets i. e. transversely of the plane.

For this purpose each pin is provided with a plurality of annular grooves 46, and a locking plate 47 (Figs. 8 and 14) is adapted to cooperate with the grooves 46 of both pins in order to lock both pins simulta neously in a predetermined transverse adjustment in respect to *the plane. The tubular sockets42 for the supporting pins are extended out of the stock 20 at one side of *the latter, as shown at in Figs. 12 and13 and the portions 48 are slotted at one or more points in their circumference as shown at 49 in Fig. 12. The locking bar or, plate 47 is provided with keyhole slots 50 fitted over the portions 48 placing the enlarged portions of said keyhole slotsin regs 'ister with 't he'latter, and when in such position a longitudinal movement of the locking bar 47'will cause the portions of the bar at the smaller ends of the slots to take into r to engage certain of'the grooves 46 of the the notches or slots 49 in such a manner as pins 41, thereby locking said pins against longitudinal movement, as shown in Fig. 13. The bar 47 jmay be manipulated by means finger pieces 51 extending upward therefrom, and when the bar has been moved to its released position (Fig. 12),inwhich theenlarged ends of the keyholeslots sur round the ends of the sockets 42, the supporting pins 41 of the gage or fence may be moved transversely of the'plane to the desired position by appropriate manipulation of the heads 43 of said pins which are lo very nice and accurate adjustment of the gage may be obtained, as will be obvious.

' The operation of the device will be more or less obvious from the foregoing description. The cutters or bits 22 after being clamped in place by means of the screws 26 are not usually adjusted as the device is used, the depth of out being easily regulated merely by the vertical adjustment of the sole plate with respect to the stock or body proper. In practice theplane is usually employed for cutting a number of parallel grooves and when the desired distance between the grooves has been ascertained it is merely necessary to adjust the gage 40in the manner hereinbefore described in such a manner as to make the distance from'the gage to thecontacting point of the cutters is made of wood as theentire'device may be made of metal without departing frorn' the general features of the construction. WVhile the foregoingdescription is a detailed one in so far as it concerns the PHI-r. ticular form -of my invention selected for illustration, it will be understood that many variations of the construction may be". adopted without digressing from myinven-g tive idea as expressed in the claims.

I will not claim hereinthe features of .the

do not wish to limit myself adjustable sole plate and the gage attachment inasmuch as these subjects matter must be claimed in divisional applications.

What I claim is:

1. In a grooving plane, the combination of a stock having an opening therein with downwardly converging walls or surfaces at opposite sides of the longitudinal median line of the stock, and bits or cutters clamped on said surfaces and having forwardly and upwardly diverging cutting edges to pro duce the groove by a shearing cut; substantially as described.

2. In a grooving plane, the combination of a stock, and separate bits or cutters mounted on th respective sides of the 1ongitudinal median line of the stock, and having forwardly and upwardly diverging cutting edges to form the groove by a shearing cut; substantially as described.

3. A grooving plane having separately adjustable bits or cutters arranged in V- fashion to cut a V-shaped groove with a shearing cut; substantially as described.

4. In a grooving plane, a stock, and bits or cutters arranged on opposite sides of the median line of the stock and converging downwardly; substantially as described.

5. In a grooving plane, bits or cutters having cutting edges contacting toward the rear of the plane and diverging toward the front of the plane; substantially as described.

6. In a grooving plane, bits or cutters arranged in the form of a V the plane of which extends transversely across the stock, with the rear ends of the cutting edges of said bits or cutters substantially in contact with each other and the front ends separated; substantially as described.

7. In a grooving plane, bits or cutters arranged in V-fashion, said cutters lying on opposite sides of a longitudinal median line or axis of the plane and having beveled cutting edges diverging from each other toward the front of the plane; substantially as described.

8. In a grooving plane, bits or cutters arranged in the form of a V, the plane of which extends transversely of the stock, the cutting edges of said bits or cutters diverging forwardly and upwardly; substantially as described.

9. In a grooving plane, bits or cutters arranged in the formof a V, the plane of which extends transversely of the stock, the cutting edges of said bits or cutters diverging forwardly and upwardly and being in contact at their rear extremities; substantially as described.

10. In a grooving plane, the combination of a stock, bits or cutters mounted in said stock in the form of a V, the plane of which extends transversely of the stock, the cutting edges of said bits diverging upwardly, and means associated with each bit to clamp it in dilferentadjustments; substantially as described.

11. An implement of the character described, comprising a grooving plane having a stock provided with a bearing portion adapted to rest on the material to be operated upon, and a cutter carried by the stock having a shearing edge facing forwardly of the implement and extending downwardly and rearwardly therefrom, substantially as described.

12. An implement of the character described, comprising a grooving plane having a stock provided with a bearing portion adapted to rest on the material to be 0perated upon, and a pair of cutters carried by the stock having shearing edges facing forwardly of the implement and extending downwardly and rearwardly therefrom, said cutting edges occupying a rearwardly converging relation to each other substantially as described.

I11 witness whereof, I have hereunto set my hand on the 11th day of Sept, 1912.

STEPHEN on AYALA.

Witnesses:

MURRAY SARGENT, CHAS. O. LAWRENCE.

Copies of this patient may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

